Gas burner



NQV. 20, 1934. HHq DODGE 1,981,349

. GAS BURNER Filed NOV.' 22, 1928 Call Patented Nov. 20, 1934 GAS BURNER Harry H. Dodge, Troy, N. Y., assigner, by mesne assignments, to `Hoguet & Neary, New York, N. Y., a, partnership consisting of Ramsay Hoguet, John F. Neary`,'and Daniel L. Morris.

Application November 22, 1928, Serial No. 321,155

s claims. (c1. 15s- 99) This invention relates to a gas burner which is particularly adapted for heating house heating, water or steam boilers, or hot air furnaces.

It is an object of the invention to provide a burner from which a combustible mixture will burn in the form of a flame and the flame will be confined on one side by an air curtain.

The invention herein described and claimed is in the nature of an improvement on that described and claimed in my co-pending application Serial No. 321,154 filed November 22, 1928.

I have shown the burner as applied to a boiler such as is commonly used for house heating, but it is of course to be understood that the invention is not confined to such application.

Figure 1 is a sectional view showing the burner in section and showing a fragment of the boiler in section.

Figure 2 is a plan View of the burner showing a fragment of the boiler in section.

Figure 3 is a sectional view taken on a horizontal plane.

In the drawing the boiler having an inner wall l, an outer wall 2, and a water space 3 is represented. The burner consists of a body portion 4 which is preferably in the form of a casting and is supported by a burner arm 5. The body 4 is provided with a chamber 6 which is formed by the two walls 7 and 8. These walls 7 and 8 produce what I shall term a combustible mixture distributing head. The chamber 6 is open at the top as at 9 but is provided with a tip 10 which tip comprises a block suitably secured to the walls 7 and 8 by means such as screws V11. The tip is also provided with a relatively deep narrow slot 12 which establishes communication between the chamber 6 and the atmosphere. This combustible mixture distributing head and the tip 10 thereof are of such configuration that the burner will follow approximately the contour of the inner wall of the boiler. Moreover, the burner may be made up of one continuous element to fit within the boiler, or it may be made up of several sections distributed within the rire pot of the boiler in the desired locations.

The supporting arm 5 is provided with a supply duct 13 which communicates with a slot 14 in the body 4, which slot in turn communicates with the chamber 6. Thus a suitable combustible gaseous mixture may pass from the feeding duct 13, through the slot 14 to the chamber 6 and thence to the burner tip 10, from the slot 12 of which it will burn as a flame.

As I have illustrated the burner, the slot 12 of the tip is arranged vertically or substantially vertically and in substantially parallel relation with the inner wall of the boiler'so' that whenv the combustible mixture burns in a flame from the tip 10, it will follow the contour of the inner wall of the boiler.

It will be noted that I have shown and have described the slot12 as relatively deep and the purpose of making this slot relatively deep rather than relatively shallow is so that upon lighting and extinguishing the ame the combustion will not extend back into the chamber 6 to cause an explosion. Were the slot 12 relatively shallow the flame would extend back into the chamber 6 and presumably because of the confining of the combustible mixture within the chamber 6 would cause an explosion both on the igniting and extinguishing of the ame from the burner tip 10.

It is to be noted that the chamber 6 is tapered and tortuous and that I have located a baille 15 in this chamber above the slot 14 so that when the combustible mixture enters the chamber 6 under pressure it will strike the baffle and subsequently reach the slot 12 which extends substantially from end to end ofthe tip 10 in such a manner that there will be an even distribution of the combustible mixture and consequently an even production of flame from the tip 10.

The body or casting 4 is provided with a wall 16 which forms with itself and the wall 8 what I shall term an air distributing head. These walls 8 and 16 are spaced so as to provide an air chamber 17 which opens upwardly as at 18 on the side of the tip 10 and the slot 12 remote from the boiler wall l. This chamber 17 communicates with a sl-ot 19 which in turn communicates with a duct 20 in the arm 5, through which duct 20 and slot 19 the chamber 17 is supplied with air under pressure, the air being obtained from any suitable source. It will be noted that I have described slots as establishing communication between the and the duct 20. This construction is selected because the casting 4 is made adjustable on the upper end of the arm 5 and secured by means of a set screw 21. 'I'he adjustability of this body or casting 4 makes it possible to move the burner tip 10 toward -or away from the boiler wall, or on the other hand, to adjust the body on the arm to adapt the device to boilers having different inside diameters. Because of this adjustability these slots are desirable.

Extending upwardly from the opening 18 of the chamber 17 is a baiile 22 which with the burner tip 10 forms in eiiect an extension 4of the chamber 17 to the end of the burner tip." This baffle l chamber 6 and the duct 13, and the chamber 17 projects beyond the end of the burner tip and this projecting portion extends inwardly toward the slot 12, or in other words, in such a direction that it tends to overhang the burner tip 10.

In the operation of the device the combustible gaseous mixture arriving in the chamber 6 of the combustible mixture d istributing head under pressure from the'duct 13 and the slot 14 is distributed through the horizontal extent of the chamber by the baille 15 and rising through the chamber increases its velocity until it reaches the tip 10 vby reason of the converging walls of the chamber 6."

As it escapes through the slot 12 of the burner tip 10, it burns in the form of a flame and thislflame is arranged adjacent the Wall 1 of the boiler..

Simultaneously with the burning of the-.flama air under pressure is directed from the chamber 17 of the air distributing head. As itescapes from this chamber the air is directed by the ylzpaitle 2v2 in x a line substantially parallel with the line of escape of the. combustible mixture, or in other-Words, in a. pla-,ne Silbslintially parallel with the plane 'of the dame, but as it escapes from this chamber 17 the'curtainof air is diverted inwardly toward the ame by the upper portion of the bale 22. ijgisuresv` the arrangement of the air curtain in close proximity to the flame and its liiowina on, an air conduit and a combustible mixture conduit extending through said head, slots in said A' head into which saidconduits discharge, a burner radially adjustably mounted on the head and havling air and. combustible mixture conduits registrable with saidslotsin the various positions of adjustment of the burner on the head.

3. Ina device of the class described, the combination with a burnerV head having air and combustible, mixture supply conduits of a Aburner, radially adjustably mounted on said head andrhav: ing air and combustible mixture c-onduitsregistra.- ble with the corresponding conduits of the head burner.

' HARRY H. DODGE. f

iis

inthe various positions of adjustment ofwthe ,1.90 

